First of all, overjet is not a disease, everyone has overjet. If you mean excessive overjet, which means like protrusion of the teeth -- if it’s mild, sometimes I’ll just accept it and make the teeth straight. Sometimes some people will have teeth that’s like Bugs’ Bunny teeth, then when you align everything it doesn’t look so out of place and the patient’s happy.
But the more severe cases you may need to have like four extractions done. They always claim that you can do it with Invisalign, but then if the patient needs extractions I’ll just tell them to go with braces. It’s a lot faster and we have a lot more control over the bite and where the teeth go. I have some patients that insist on doing it with Invisalign, but I tell them: Look, in the end, you’d probably need to finish with braces, so it’s your choice. So it’s a very subjective question, that’s why it’s back to treatment planning, discussing with the patient what they mean exactly, how much correction do they want. Then we tell if that’s possible: “yes it’s possible, but you need to do these things” or like “no it’s just not possible”.